Mailing lists / lazarus / 2014-07
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Hi,
The IDE and lazbuild now compile packages in parallel. Each package is still compiled with one call of fpc (single threaded).
You can set the maximum number of parallel processes in Tools / Options / Messages Window. By default it tries to guess the amount of cpu cores with the function GetSystemThreadCount in unit UTF8Process.
Mattias
Nice feature, thanks.
I only wonder why is it "hidden" in Messages Window? IMO it has nothing to do with it. I should rename the node to 'Messages and Compilation' ?or create new node 'Compilation' if there are planned more options like this in future.?
?
Vojt?ch?
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Hi,
The IDE and lazbuild now compile packages in parallel. Each package is still compiled with one call of fpc (single threaded).
You can set the maximum number of parallel processes in Tools / Options / Messages Window. By default it tries to guess the amount of cpu cores with the function GetSystemThreadCount in unit UTF8Process.
Mattias
The IDE and lazbuild now compile packages in parallel. Each package is still compiled…
A very welcome feature. It improved the IDE build cycle time from 90s to 60s in my setup (including linking)!
Regarding the cpu cores, it says default(4). I suppose the 4 is system dependent.
I agree with Vojt?ch regarding the placement of the option. The 'Configure build lazarus' is a more suitable place.
Stephano
The IDE and lazbuild now compile packages in parallel. Each package is still compiled…
Hi,
seems to work well here.
Building the IDE with quite some packages installed went from 2 min to 1 min. 4 cores, 4 cores detected by Lazarus.
Nice feature.
R.
Nice feature, thanks. I only wonder why is it "hidden" in Messages Window? IMO it has…
Nice feature, thanks. I only wonder why is it "hidden" in Messages Window? IMO it has nothing to do with it. I should rename the node to 'Messages and Compilation' ?or create new node 'Compilation' if there are planned more options like this in future.?
There are no more such options planned.
The option is only for processes shown in the Messages window. Other processes started by the IDE are not limited.
Parallel execution also means adding new lines in the Messages window at multiple places instead of only appending at the end. This might disturb or confuse some users, so they might start looking at the Messages options.
Mattias
A very welcome feature. It improved the IDE build cycle time from 90s to 60s in my setup…
Very nice indeed. I am testing with my employer's windows laptop and I can see all 4 cores being used.
patspiper wroteI agree with Vojt?ch regarding the placement of the option. The 'Configure build lazarus' is a more suitable place.
No, 'Configure build lazarus' is only about rebuilding Lazarus itself. The new threaded compilation is for all projects.
Juha
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